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Re: QCTP question
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Steve Thompson
Hi Den,
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Don't give me the credit for designing this project. I found it on the site below but I believe it was originally designed by someone on this list (Mert ? Jim ?). I am more than pleased with it. The only thing I would have done differently is to make the post itself from steel as indicated on the web page. I used LG4 gunmetal mainly because it was the only metal I had handy in the size required. It works fine but scratches rather easily. If you don't have a bandsaw or powered hacksaw, now is the time to buy one, cutting 1" chunks of 2"x2" Al or steel is going to give you *big* shoulders :-) I cut my first three by hand until I got the bandsaw. Made loads since. I also added a locknut to the height adjusting screw for obvious reasons. After I had used it for a while, I got fed up with having to remove the top tool post locking nut just to change holders so I made a new one. It's just a piece of 1" round bar drilled and tapped M10 (check yours) with a hole in the side for a tommy bar One thing I'm going to try next time I make a holder is, after boring the centre hole, to cut a recess in the bottom to just clear the bottom lip of the post. This will allow the holder to sit lower down and so enable me to use slightly larger tools if needed. With regard to roughing cuts, with this tool post on, the compound will move before the tool post does, it's that solid! Hope this helps, Steve -----Original Message-----
From: denyhstk [mailto:nheng@...] Sent: 07 June 2003 17:41 To: 7x12minilathe@... Subject: [7x12minilathe] Re: QCTP question Steve: I've had that qctp bookmarked for some time but have not found the time for it ... until now. I just bought and am returning a micro qctp from Phase II. The hardare is cheap and many screws will not even accept a quality metric hex wrench. Also, the boring bar holder is bored much too large and cannot clamp down on a 0.375" bar. The post you built appears as though it could be as rigid (or maybe even better) than a dovetail post due to the large surface area of the cylinder. How does it behave during heavy roughing cuts or parting cuts ? Thanks for sharing your project ! Den --- In 7x12minilathe@..., "Steve Thompson" <sk.thompson@n...> wrote: > If you are on a limited budget, why not make your own. I've just made the > one at . Works a treat. > > Steve > > > Hi: > > > > I've just joined the list and I have found many comments touting > the benefits of > > a quick change tool post. Being on a limited budget, though, I was > wondering > > if the model sold by Harbor Freight > ( > > Displayitem.taf?itemnumber=42806) is worth the $85. Has anyone > tried the > > set? Any problems? It appears to come with some great attacments > and > > tools. I hate to do things on the cheap, but there are other tools > I need, and > > money is limited. Any comments or suggestions would be really > appreciated. > > > > Thanks, > > > > Jason Swan > > > Yahoo! Groups Sponsor > ADVERTISEMENT > > > > > To unsubscribe from this group, send an email to: > 7x12minilathe-unsubscribe@... > > > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (). > Version: 6.0.467 / Virus Database: 266 - Release Date: 01/04/2003 > > > Yahoo! Groups Sponsor To unsubscribe from this group, send an email to: 7x12minilathe-unsubscribe@... Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (). Version: 6.0.489 / Virus Database: 288 - Release Date: 10/06/2003 |
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